Eight years into a U.S. program to control damage from feral pigs, the invasive animals with big appetites and snouts that uproot anything that smells good are still a multibillion-dollar plague on farmers, wildlife and the environment.
These prolific hogs gone wild have been wiped out in 11 of the 41 states where they were reported in 2014 or 2015, and there are fewer in parts of the other 30.
